EP0406555A1 - Transformateur de type réacteur à shunt commun - Google Patents
Transformateur de type réacteur à shunt commun Download PDFInfo
- Publication number
- EP0406555A1 EP0406555A1 EP90109760A EP90109760A EP0406555A1 EP 0406555 A1 EP0406555 A1 EP 0406555A1 EP 90109760 A EP90109760 A EP 90109760A EP 90109760 A EP90109760 A EP 90109760A EP 0406555 A1 EP0406555 A1 EP 0406555A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transformer
- shunt reactor
- yoke
- type
- shared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
- H01F27/385—Auxiliary core members; Auxiliary coils or windings for reducing harmonics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/10—Single-phase transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/12—Two-phase, three-phase or polyphase transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F37/00—Fixed inductances not covered by group H01F17/00
Definitions
- This invention relates to a shared shunt reactor type transformer used in a power transmission or distribution system.
- FIGURE 1 There is known a shared shunt reactor type three-phase transformer, as disclosed in Japanese Patent Application laid open under No. 30112/1985. Its construction is schematically shown in FIGURE 1. It comprises a transformer 1, a shunt reactor 2, and a tank 3 in which the transformer and the shunt reactor are installed.
- the transformer 1 has a limb core 1 a , an upper and a lower yoke 1 b and 1 c and a coil 1 d .
- the excitation of the transformer 1 causes main magnetic flux to pass as shown at 1 e .
- the shunt reactor 2 has an upper yoke 2 b a gap core 2 a , and a coil 2 d .
- the excitation of the reactor 2 causes magnetic flux to pass as shown at 2 e .
- the coils 1 d and 2 d are so wound respectively that the main magnetic flux passing through the limb core 1 a of the transformer 1 may be of the same polarity as that passing through the gap core 2 a of
- FIGURE 2 shows a case that a transformer 1 and a shunt reactor 2 are separate from each other.
- the transformer 1 is installed in a tank 4, and the shunt reactor 2 in another tank 5.
- the reactor 2 includes a lower yoke 2 c .
- the transformer 1 and the reactor 2 are otherwise of the same construction as those which have been described with reference to FIGURE 1. If the reactor 2 is connected to the top of the transformer 1 in a common tank 3 so that the upper yoke 1 b of the transformer 1 may serve as the lower yoke 2 c of the reactor 2, too, a shared shunt reactor type transformer as shown in FIGURE 1 is obtained.
- the modes in which magnetic flux passes through the upper yoke 1 b of the transformer 1 consist of three cases, i.e.:
- FIGURE 1 exhibits the same performance as the separate type shown in FIGURE 2, and yet calls for a smaller space for installation, if the upper yoke 1 b of the transformer 1 has so large a cross-sectional area that it may not be magnetically saturated in any of the three cases.
- This object is essentially attained in this invention by dividing a yoke of a transformer into two portions, one of which the transformer shares with a shunt reactor as a bypass yoke.
- FIGURE 3 showing a shared shunt reactor type transformer of a single-phase shell-type.
- the transformer 1 has a limb core 1 a , a yoke 1 c , and a coil 1 d .
- the yoke 1 c has a diminished yoke X and a bypass yoke Y.
- the apparatus also includes a shunt reactor 2.
- the reactor 2 has a gap core 2 a , and a coil 2 d which is surrounded by the diminished yoke X of the transformer 1 and the bypass yoke Y.
- the diminished yoke X and the bypass yoke Y form a yoke for the reactor 2, too.
- the excitation of the transformer 1 causes a main magnetic flux to pass as shown at 1 e
- the excitation of the shunt reactor 2 causes magnetic flux to pass as shown at 2 e
- the coils 1 d and 2 d are wound in such a way that the magnetic flux 1 e and 2 e passing through the diminished yoke X may cancel each other.
- FIGURE 4 showing a case that a shell type transformer 1 and a shell type shunt reactor 2 are so positioned that the respective yokes 1 c and 2 b thereof may stay apart from each other, but in a mutually closely adjacent relation.
- the main magnetic flux 1 e and the magnetic flux 2 e are designed for passing in opposite directions through the yoke 1 c of the transformer 1 and the yoke 2 b of the reactor 2, respectively.
- the apparatus shown in FIGURE 3 is obtained if the transformer 1 and the shunt reactor 2 which are shown in FIGURE 4 are so combined that the yoke 1 c of the transformer 1 may serve as the yoke 2 b of the reactor 2, too.
- the magnetic fluxes 1 e and 2 e pass in the opposite directions, they cancel each other when passing through the diminished yoke X in the apparatus shown in FIGURE 3. It is, therefore, sufficient for the diminished yoke X to have a cross-sectional area which allows for the passage of the amount of magnetic flux equal to the difference between 1 e and 2 e , and which is smaller than the original cross-sectional area of the yoke 1 c .
- FIGURE 5 showing the magnetic flux distribution which occurs when only the transformer 1 is excited.
- the main magnetic flux of the transformer 1 is distributed through the diminished yoke X and the bypass yoke Y. Therefore, it is sufficient for the diminished yoke X and the bypass yoke Y to have a sum of cross-sectional areas of yokes X and Y which is equal to the original cross-sectional area of the yoke 1 c .
- the apparatus shown in FIGURE 3 enables a reduction in the cross-sectional area of the yoke of the transformer 1 by an amount equal to the difference between that of 1 c as shown in FIGURE 4 or 5 and that of X, and thereby a smaller space for installation.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Housings And Mounting Of Transformers (AREA)
- Transformers For Measuring Instruments (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP173037/89 | 1989-07-06 | ||
JP1173037A JPH0682582B2 (ja) | 1989-07-06 | 1989-07-06 | 分路リアクトル共有形変圧器 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0406555A1 true EP0406555A1 (fr) | 1991-01-09 |
EP0406555B1 EP0406555B1 (fr) | 1993-08-11 |
Family
ID=15953033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90109760A Expired - Lifetime EP0406555B1 (fr) | 1989-07-06 | 1990-05-22 | Transformateur de type réacteur à shunt commun |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0406555B1 (fr) |
JP (1) | JPH0682582B2 (fr) |
CN (1) | CN1017846B (fr) |
DE (1) | DE69002708T2 (fr) |
HK (1) | HK1003811A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0551555A1 (fr) * | 1992-01-17 | 1993-07-21 | Mitsubishi Denki Kabushiki Kaisha | Transformateur adapté pour montage dans un véhicule |
WO2017144215A1 (fr) * | 2016-02-24 | 2017-08-31 | Bayerische Motoren Werke Aktiengesellschaft | Transformateur combiné et convertisseur à résonance llc |
CN112530676A (zh) * | 2020-11-17 | 2021-03-19 | 青岛中加特电气股份有限公司 | 双铁芯变压器 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI378478B (en) * | 2007-01-09 | 2012-12-01 | Mitsubishi Electric Corp | Reactor-jointed transformer |
JP5217061B2 (ja) | 2008-03-04 | 2013-06-19 | 三菱電機株式会社 | 変圧装置 |
JP5081063B2 (ja) * | 2008-05-22 | 2012-11-21 | 本田技研工業株式会社 | 複合型変圧器、および電力変換回路 |
MX2011000398A (es) * | 2008-07-30 | 2011-03-01 | Poration Toshiba Mitsubishi Electric Ind Systems Cor | Dispositivo de conversion de energia. |
CN102867628A (zh) * | 2012-09-29 | 2013-01-09 | 湖南大学 | 一种磁集成式集成滤波电感变压器 |
CN113012903A (zh) * | 2021-02-04 | 2021-06-22 | 中车株洲电力机车研究所有限公司 | 一种适用于铁心磁路复用电气系统的控制架构 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6030112A (ja) * | 1983-07-05 | 1985-02-15 | Fuji Electric Co Ltd | 分路リアクトル共有形変圧器 |
US4853664A (en) * | 1986-12-22 | 1989-08-01 | Mitsubishi Denki Kabushiki Kaisha | Three-phase transformer for cycloconverter |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5345443A (en) * | 1992-04-30 | 1994-09-06 | At&T Bell Laboratories | Network-based digital bandwidth-on-demand |
-
1989
- 1989-07-06 JP JP1173037A patent/JPH0682582B2/ja not_active Expired - Lifetime
-
1990
- 1990-02-23 CN CN 90100967 patent/CN1017846B/zh not_active Expired
- 1990-05-22 EP EP90109760A patent/EP0406555B1/fr not_active Expired - Lifetime
- 1990-05-22 DE DE1990602708 patent/DE69002708T2/de not_active Expired - Fee Related
-
1998
- 1998-04-08 HK HK98102938A patent/HK1003811A1/xx not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6030112A (ja) * | 1983-07-05 | 1985-02-15 | Fuji Electric Co Ltd | 分路リアクトル共有形変圧器 |
US4853664A (en) * | 1986-12-22 | 1989-08-01 | Mitsubishi Denki Kabushiki Kaisha | Three-phase transformer for cycloconverter |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0551555A1 (fr) * | 1992-01-17 | 1993-07-21 | Mitsubishi Denki Kabushiki Kaisha | Transformateur adapté pour montage dans un véhicule |
WO2017144215A1 (fr) * | 2016-02-24 | 2017-08-31 | Bayerische Motoren Werke Aktiengesellschaft | Transformateur combiné et convertisseur à résonance llc |
US10673341B2 (en) | 2016-02-24 | 2020-06-02 | Bayerische Motoren Werke Aktiengesellscaft | Combined transformer and LLC resonant converter |
CN112530676A (zh) * | 2020-11-17 | 2021-03-19 | 青岛中加特电气股份有限公司 | 双铁芯变压器 |
CN112530676B (zh) * | 2020-11-17 | 2022-09-02 | 青岛中加特电气股份有限公司 | 双铁芯变压器 |
Also Published As
Publication number | Publication date |
---|---|
DE69002708T2 (de) | 1993-11-25 |
EP0406555B1 (fr) | 1993-08-11 |
JPH0682582B2 (ja) | 1994-10-19 |
DE69002708D1 (de) | 1993-09-16 |
CN1017846B (zh) | 1992-08-12 |
CN1048626A (zh) | 1991-01-16 |
JPH0338807A (ja) | 1991-02-19 |
HK1003811A1 (en) | 1998-11-06 |
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